FILE - In this June 25, 2014, file photo, former President Bill Clinton, left, speaks with Zappos.com CEO Tony Hsieh during a forum on the final day of the annual gathering of the Clinton Global Initiative America in Denver. Hsieh, retired CEO Zappos.com, has died. (AP Photo/Brennan Linsley, File)LAS VEGAS – Tony Hsieh, the retired CEO of Las Vegas-based online shoe retailer Zappos.com, who spent years working to transform the city's downtown area, has died. “Tony Hsieh played a pivotal role in helping transform Downtown Las Vegas,” Nevada Gov. He genuinely delighted in making anyone and everyone happy.”Skateboarder and entrepreneur Tony Hawk added, “Tony Hsieh was a visionary.